Improving the performance of acoustic invisibility with multilayer structure based on scattering analysis

Cai Chen¹, Yuan Yin², Kan Wei-Wei³, Yang Jing¹, Zou Xin-Ye^{1, †,}

Normalized acoustic pressure fields for the plane wave source [(a) and (c)] and for cylindrical wave source [(b) and (d)]. The scattering object is protected by the 10-layer shell ((a) and (b)), and unprotected ((c) and (d)). The unit a.u. is short for arb. units.